About the Authors

Claire Friedemann Smith

claire.smith@ucl.ac.uk

Affiliation Health Behaviour Research Center, Department of Epidemiology and Public Health, University College London, London, United Kingdom

Carl Heneghan

Affiliation Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom

Alison Ward

Affiliation Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CFS CH AW. Performed the experiments: CFS. Analyzed the data: CFS CH AW. Wrote the paper: CFS CH AW.